Mandrel-conveying means



May 7, 1929- w. c. aLl-:HER ET AL 1,711,557

MANDREL CONVEYING MEANS Filed July l2, 1927 4 Sheets-Sheet l atto: nativ May 7, 1929.

w. C. BLEHER ET AL NANDRNLl CONVEYING MEANS 4 Sheets-Sheet Filed Jqly l2, 1927 May 7, 1929- w. c.l BLE-:HER ET ALV 1,711,557

MANDRE-L CONVEYING MEANS' 4 sheets-sheet 3 Filed July l2, 1927 afa@ MM y May 7,1 1929- w. c. BLEHER ET AL v 1,711,557

MNDREL CONVEYING MEANS.

Filed July l2, 1927 A 4 Sheets-Sheet 4 atto: e134 Patented lVl-ay 7, 19.29.

UNITED STATES- y 1,711,557 PATENT oFF-ics.

WILLIAM C. BLEHER, FRANK E. WILLIS, AND ROLAND A. WENTWORTH, F TOW'N, MASSACHUSETTS, ASSIGNORS TO HOOD RUBBER COMPANY',l 0F WATER- TOWN, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

MANDREIi-CONVEYING MEANS y Application led July i2,

Our present invention relates to appara. tus for conveying mandrels kor poles bearing uncured inner tubes from asui'table source, such as the station or stations where the rubber sheets are Wrapped'on the mandrels to a device or apparatus for supplying -them to means by which they are provided covered with helically wound fabric'strips prior to being lintroduced i-nto the vulcanizers such as disclosed in a companion application filed 4in the U. S. Patent Oiice on the 26th day of March 1927, Serial Number'194,330.

The invention aims' to provide apparatus by which the mandrels carrying the tubes may be expeditiously and continuously conveyed from a relatively remote station 1 or stations to 'a position in proximity to the lathe mechanism, and automatically delivered from the conveyor to the wrapping mechanism. i

With these and other objects in view which will be readily apparent from the following specication, the invention includes the novel features of construction. and arran ement and combination of parts hereinaaer described and defined by the appended claims. What we at present consider the preferred embodiment of the'invention is illustrated in '30 the accompanying drawingsin which:-

Figure 1 is a plan view partly broken away. I v

Fig. 2 is a section substantially on line 2-2 of Figure 3, partly broken away and with parts omitted. Fig. 3 is anend away.

Figs. 4 and 5- are enlarged detail views. Figs. 6 and 7 are fragmentary detail views. n.

' Fig. 8 is a section on line 8--8 of Fig. 3. vReferring by reference characters to. these drawings, the numeral 1 designates a conz veyoibelt supported in troughed sha-pe by troughing strips 2b carried. by supporting 4table 2a supported bythe longitudinally bars 2 and extending for a suitable distanceto` be adjacent one or more operators stations l (not shown) where the uncured tube sheets are rolled on` the mandrels or poles; Conveyor belt 1 passes over suitable pulleys, that' (25) at the end shown in Fig. 3 being` driven from shaft 3 (operated by any suitable prime mover such as motor 4 andrenelevation partly broken 1927. Serial No. 205,110.'

closed worm gearing 4a) through suitable 55 drive 'means such as sprockets 5, 5a, 5* and 5"l and sprocket` chains 5d, 5e. Sprocket 5 is fast on the shaft 25u which carries and drives the belt supporting and driving pulley 55, asnub roll .26 being located ad- ]acent said drive pulley to deflect the lower or idle run of the belt and thereby secure a more eficient driving contact and also elevate said lower run. Adjacent the deliveryend of the belt the troughing members are discontinued as shown in Figs. 6 to 8 and at one side of 'the flat table portibn thereby provided is an inclined gravity table 6, Figs. land 2, to which the tube cari' ing mandrels are automatically. delivered rom the belt and down which they roll by gravity until they are picked up by the elevating conveyor 7, 'hereinafter described.` .I For the purpose of automatically delivering the`mandrels from the belt to the gravity table,.I provide .a lever 8 fulcrumed at 8a on the conveyor frame and projecting horizontally across the u per face of the beltin the path of the man rels carried thereby as shown in Fig. 4. lThe opposite end of the lever carries a roller 9 bearing on a contact member 10 mounted on the upturned end of a bar 10 slidably carried by the brackets 11 on theconveyor frame. Bar 10 carries cams or inclines 12 (Fig. 3) whichcooperate with rollers 13 carried by the free ends of pivoted arms 14 underlying the belt -1 and fulcrumed at 14:a to the conveyor frame.

Themovement of the mandrel X by the conveyor belt in `the directionv indicated by'-l the arrow, Fig. 4, causes the end of the man- -drel to strikethe lever 8, swinging the latter about its fulcr'um and causing roller '9V to move bar 10 in the opposite direction against the tension, of spring 1'0". The inclines or 95 cams 12 carried by barl() are thereby moved beneath the' rollers 13, lifting the latter and the free ends ofv the arms 14. Thereby the arms 1,0 and belt 1 overlying the same are tilted linto an inclined position, and the mandrelrolls by gravity off the`conveyor belt and down the inclined table 6 to the bottom ed e of the latter, where it is picked up by t e elevating conveyor.

The elevating conveyor comprises a air of endless chains 7 located at'opposite sides o f an inclined table 16 and having certain of its links provided with upstanding abutments 7a (Fig. 5) adaptedto impinge against the uncovered ends of the poles or mandrels, the movement of the conveyor chains thus causing the mandrels to be rolled up the inclined table 16 to reversely inclined Supports 17. Conveyor ch'ains 7 may be conveniently driven through chain, and sprocket gearing 18, 19 and 20, sprocket 18 being fasten shaft 1 8 and the sprocket 20 being fast on shaft 21,

which, through bevel bearing 22: drives shaft 23 which in turn carries the sprockets 24 laround which the elevator sprocket chains pass. l c The reversely inclined supports 17 above referred to are preferably in the shape of angle bars having the upper edges of their vertical webs positioned to receive the uncovered ends of the mandrels and said sup-v ports carry an intermittently rotated ,separator 28 by which the mandrels are held back on the support and fed one at a time to the mandrel positioning vand rotating mechanism disclosed in the companion application hereinbefore referred to.

Having thus described our invention, what we claim is:

1. In combination an endless flexible belt conveyor for conveying tube mandrels and the like, receiving means at the side of the conveyor adjacent the delivery end, and means operated by the impact of the article carried by the belt for causing 'the article carrying portion of the belt to be tilted'finto an inclined plane todeliver the article to said receiving means. r

2. In combination an endless iexible belt conveyor with means for driving it, re-

ceiving means at the side of the conveyor adjacentl one end, a member projecting across tlie upper face of the conveyor in the path of the articles carried lthereby and adapted to be moved longitudinally of the conveyor by the articles thereon, means underlying the belt for tipping the portion adjacent the receiving means, and means whereby movement of said overlying memlber operates said tilting. means.

3. In combination an endless conveyor belt with means for drivlng it, receiving means at one side thereof adjacent the delivery end, lever means underlyin the belt adjacent the receiving means and ulcrumed at the side ofthe belt'adjacent said receiving means, cam means for raising the remote ends of the lever means, and a member overlying the belt and lying in the path of movement of objects carried thereby and movable longitudinally of the belt, and means whereby the movement of said overlying member operates said cam means.

4. In combination an endless conveyor belt with meansfor'drivin it, receiving means at one'side thereof a jacent the delivery end, a plurality of arms extending transversely beneath the belt and fulcrumed on fixed pivots on the side'..adjacent the receiving means, alongitudinally slidable bar having inclines beneath the free ends of said arms, a member overlying the beltand movable longitudinally of the belt by articles carried thereby, and means whereby movement yof "said overlying member loperates said bar. f

5. In 'combination an endless Aconveyor belt with means for driving it, receiving means at one4 side thereof adjacent the, delivery end, a plurality of arms extending transversely beneath the belt and fu'lcrumed on'fixedpivots on the side adjacent the receiving means, a longitudinally slidable bar having inclines beneath the free ends of said armsya lever of the first order fulcrumed on a fixed pivot and having one arm or portion overlying the belt, and a contact member` carried by said bar with which the other end of the lever cooperates.

6. Apparatus according to `claim 1 yin which the receivin means comprises a downwardly incline table which communicates with an upwardly inclined delivery conveyor terminating in an inclined storage support provided with intermittently operated mandrel retaining and releasing means.

In testimony natures.

iWILLIAM o. BLEHER.- lFRANK E. WILLIS. ROLAND lA. WENTWORTH,

whereof, we atlix oursig- 

